Extrusion device for double-screw extruder

Abstract

The utility model relates to the technical field of eliminating and crushing of noble ladles, in particular to an extrusion device for a double-screw extruder, which comprises an extrusion cabin, a feeding hopper is arranged at the top of the extrusion cabin, the inside of the extrusion cabin is rotatably connected with the surface of a rotating rod of a screw roller, and the end part of the rotating rod of the screw roller is fixedly connected with the surface of a fluted disc; the extrusion device for the double-screw extruder has the beneficial effects that the end part of the screw roller is fixedly connected with the surface of the fluted disc, and the teeth of the fluted disc are meshed with the teeth of the driving fluted disc, so that when the driving motor is started, the driving fluted disc rotates; and when the conveying auger rotating rod rotates in the conveying pipe, the materials are conveyed into the feeding pipe and then enter the extrusion cabin, and therefore the automatic feeding effect in the extrusion cabin can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of eliminating the breakage of rich buns, in particular to an extrusion device used for a twin-screw extruder. Background Art

[0002] The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in the molding processing of extruded products. The twin-screw extruder is a common production equipment in the plastic processing industry. It can process solid materials or powders into plastic products with certain shapes and properties.

[0003] However, in the prior art, during extrusion, the material in the hopper of the existing twin-screw extruder directly leaks into the twin-screw extruder by gravity, which easily causes uneven feeding of the twin-screw extruder and sedimentation and accumulation of the material in the hopper.

[0004] Therefore, we need an extrusion device for a twin-screw extruder, which can solve the problem of conveying materials during material feeding in the existing twin-screw extruder and avoid uneven material feeding in the hopper. Utility Model Content

[0005] The utility model aims to provide an extrusion device for a twin-screw extruder to solve the problem of conveying materials during material feeding in the existing twin-screw extruder proposed in the above background technology, and also to avoid uneven material feeding in the hopper.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extrusion device for a twin-screw extruder, comprising an extrusion cabin, a top hopper being arranged on the top of the extrusion cabin, the interior of the extrusion cabin being rotatably connected to the surface of a rotating rod of a screw roller, the end of the rotating rod of the screw roller being fixedly connected to the surface of a toothed disc, the teeth of the toothed disc meshing with the teeth of a driving toothed disc, the surface of the driving toothed disc being fixedly connected to the end of a power output shaft of a driving motor, and the base of the driving motor being fixedly connected to the inner bottom surface of the extrusion cabin.

[0007] Preferably, a card slot is provided on the outer surface of the upper hopper, a card block is inserted on the surface of the card slot, the surface of the card block is fixedly connected to the inner surface of the cover, and the inner surface of the cover is sleeved on the top of the upper hopper.

[0008] Preferably, the bottom end of the output pipe of the loading hopper passes through the top surface of the hollow tube of the feeding pipe, the end of the hollow tube of the feeding pipe passes through the surface of the loading pipe, the bottom end of the loading pipe passes through the top surface of the extrusion chamber, the inside of the hollow tube of the feeding pipe is rotatably connected to the surface of the feeding auger rotating rod, the end of the feeding auger rotating rod is fixedly connected to the end of the power output shaft of the motor, the base of the motor is fixedly connected to the side surface of the shell, and the base of the shell is fixedly connected to the top surface of the extrusion chamber.

[0009] Preferably, the surface of the power output shaft of the motor is fixedly connected to the inner ring surface of the driving gear, the teeth of the driving gear mesh with the teeth of the transmission gear, the inner ring surface of the transmission gear is fixedly connected to the surface of the rotating shaft, the surface of the rotating shaft is rotatably connected to the inside of the shell, the surface of the rotating shaft is rotatably connected to the inside of the cavity tube, the end of the cavity tube passes through the surface of the upper hopper, and the end of the cavity tube is fixedly connected to the surface of the turning ring.

[0010] Preferably, the motor and the drive motor are both powered by an external power supply.

[0011] Preferably, the number of the screw rollers is two, and the two screw rollers are symmetrically arranged along the center point of the extrusion chamber.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by fixing the end of the screw roller to the surface of the toothed disc, the teeth of the toothed disc are meshed with the teeth of the driving toothed disc, and when the driving motor is started, the driving toothed disc rotates to drive the toothed disc to rotate, so the toothed disc drives the screw roller to automatically extrude the material inside the extrusion chamber, and when the feeding auger rotating rod rotates inside the feeding pipe, the material is transported to the inside of the feeding pipe and then enters the extrusion chamber, thereby realizing the automatic feeding effect inside the extrusion chamber, and by meshing the teeth of the transmission gear and the driving gear, the inside of the transmission gear is fixedly connected to the surface of the rotating shaft, and then the end of the rotating shaft is fixedly connected to the surface of the turning ring, when the motor is turned on, the driving gear drives the transmission gear to rotate automatically inside the shell, so the rotating shaft drives the turning ring to turn the material inside the upper hopper, so as to prevent the material from accumulating inside the upper hopper and causing the feeding auger rotating rod to transport the material to the inside of the extrusion chamber not evenly; it further solves the problem of material feeding in the existing twin-screw extruder, and can also avoid uneven material feeding in the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the utility model:

[0014] Figure 2 This is a schematic side view of the overall structure of the utility model:

[0015] Figure 3 for Figure 2 Structural section at AA:

[0016] Figure 4 This is a schematic side view of the overall structure of the utility model:

[0017] Figure 5 for Figure 4 Structural section at the middle BB:

[0018] Figure 6This is a schematic cross-sectional view of the structure shell of the utility model:

[0019] Figure 7 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: extrusion cabin 1, loading hopper 2, sealing cover 3, shell 4, transmission gear 5, rotating shaft 6, motor 7, turning ring 8, feeding pipe cavity tube 9, feeding auger rotating rod 10, driving gear 11, feeding pipe 12, driving motor 13, screw roller 14, gear disc 15, driving gear disc 16, slot 17, block 18, cavity tube 19. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 7 The utility model provides a technical solution: an extrusion device for a twin-screw extruder, comprising an extrusion chamber 1, a top hopper 2 is arranged on the top of the extrusion chamber 1, the inside of the extrusion chamber 1 is rotatably connected to the surface of the rotating rod of the screw roller 14, the end of the rotating rod of the screw roller 14 is fixedly connected to the surface of the toothed disc 15, the teeth of the toothed disc 15 mesh with the teeth of the driving toothed disc 16, the surface of the driving toothed disc 16 is fixedly connected to the end of the power output shaft of the driving motor 13, the base of the driving motor 13 is fixedly connected to the inner bottom surface of the extrusion chamber 1, and the toothed disc 15 is meshed with the teeth of the driving toothed disc 16. The surface of the driving toothed disc 16 is fixedly connected to the end of the power output shaft of the driving motor 13, and the base of the driving motor 13 is fixedly connected to the inner bottom surface of the extrusion chamber 1. An upper hopper 2 is arranged on the top of the extrusion chamber 1. When the internal material of the upper hopper 2 enters the interior of the extrusion chamber 1, the material is extruded by rotating the screw roller 14 inside the extrusion chamber 1. The end of the screw roller 14 is fixedly connected to the surface of the toothed disc 15, and the teeth of the toothed disc 15 are engaged with the teeth of the driving toothed disc 16. When the driving motor 13 is started, the driving toothed disc 16 rotates to drive the toothed disc 15 to rotate, so that the toothed disc 15 drives the screw roller 14 to automatically extrude the material inside the extrusion chamber 1.

[0024] Embodiment 2

[0025] Refer to the attached Figures 1 to 7On the basis of the first embodiment, in order to realize the sealing of the material inside the upper hopper 2 after the material inside the upper hopper 2 is filled, a card slot 17 is provided on the outer surface of the upper hopper 2, a card block 18 is inserted into the surface of the card slot 17, and the surface of the card block 18 is fixedly connected to the inner surface of the sealing cover 3, and the inner surface of the sealing cover 3 is sleeved on the top of the upper hopper 2;

[0026] A slot 17 is provided on the outer surface of the upper hopper 2, a block 18 is inserted into the surface of the slot 17, and then the surface of the block 18 is fixedly connected to the inner surface of the cover 3. When the material inside the upper hopper 2 is filled, the material inside is sealed.

[0027] Embodiment 3

[0028] Refer to the attached Figures 1 to 7 On the basis of the second embodiment, in order to realize the automatic feeding effect inside the extrusion chamber 1, the bottom end of the output pipe of the upper hopper 2 penetrates the top surface of the feeding pipe 9, the end of the feeding pipe 9 penetrates the surface of the upper pipe 12, the bottom end of the upper pipe 12 penetrates the top surface of the extrusion chamber 1, the inside of the feeding pipe 9 is rotatably connected to the surface of the feeding auger rotating rod 10, the end of the feeding auger rotating rod 10 is fixedly connected to the end of the power output shaft of the motor 7, the base of the motor 7 is fixedly connected to the side surface of the shell 4, and the base of the shell 4 is fixedly connected to the top surface of the extrusion chamber 1;

[0029] By starting the motor 7, the feed auger rotating rod 10 rotates inside the feed pipe 9, and by passing the bottom end of the feeding pipe 12 through the top surface of the extrusion chamber 1, when the feed auger rotating rod 10 rotates inside the feed pipe 9, the material is transported to the inside of the feeding pipe 12 and then enters the extrusion chamber 1, thereby realizing the automatic feeding effect inside the extrusion chamber 1.

[0030] Embodiment 4

[0031] Refer to the attached Figures 1 to 7 On the basis of the third embodiment, in order to realize the turning of the material inside the upper hopper 2, the surface of the power output shaft of the motor 7 is fixedly connected to the inner ring surface of the driving gear 11, the teeth of the driving gear 11 mesh with the teeth of the transmission gear 5, the inner ring surface of the transmission gear 5 is fixedly connected to the surface of the rotating shaft 6, the surface of the rotating shaft 6 is rotatably connected to the inside of the shell 4, the surface of the rotating shaft 6 is rotatably connected to the inside of the cavity tube 19, the end of the cavity tube 19 passes through the surface of the upper hopper 2, and the end of the cavity tube 19 is fixedly connected to the surface of the turning ring 8;

[0032] By meshing the teeth of the transmission gear 5 and the driving gear 11, the inside of the transmission gear 5 is fixedly connected to the surface of the rotating shaft 6, and then the end of the rotating shaft 6 is fixedly connected to the surface of the turning ring 8. When the motor 7 is turned on, the driving gear 11 drives the transmission gear 5 to automatically rotate inside the shell 4. Therefore, the rotating shaft 6 drives the turning ring 8 to turn the material inside the upper hopper 2, so as to prevent the material from accumulating inside the upper hopper 2, resulting in the feed auger rotating rod 10 not being able to evenly transport the material into the extrusion chamber 1.

[0033] In actual use, an upper hopper 2 is arranged on the top of the extrusion chamber 1. When the internal material of the upper hopper 2 enters the interior of the extrusion chamber 1, the material is extruded by rotating the screw roller 14 inside the extrusion chamber 1. The end of the screw roller 14 is fixedly connected to the surface of the toothed disc 15, and the teeth of the toothed disc 15 are meshed with the teeth of the driving toothed disc 16. When the driving motor 13 is started, the driving toothed disc 16 is rotated to drive the toothed disc 15 to rotate, so that the toothed disc 15 drives the screw roller 14 to automatically extrude the material inside the extrusion chamber 1. A card slot 17 is provided on the outer surface of the upper hopper 2, and a card block 18 is inserted into the surface of the card slot 17. Then, the surface of the card block 18 is fixedly connected to the inner surface of the sealing cover 3. When the internal material of the upper hopper 2 is filled, the internal material is sealed, and the feeding is started by starting the motor 7. The auger rotating rod 10 rotates inside the feed pipe 9, and the bottom end of the feeding pipe 12 is passed through the top surface of the extrusion chamber 1. When the feeding auger rotating rod 10 rotates inside the feed pipe 9, the material is transported to the inside of the feeding pipe 12 and then enters the extrusion chamber 1, thereby realizing the automatic feeding effect inside the extrusion chamber 1. By meshing the teeth of the transmission gear 5 and the driving gear 11, the inside of the transmission gear 5 is fixedly connected to the surface of the rotating shaft 6, and then the end of the rotating shaft 6 is fixedly connected to the surface of the turning ring 8. When the motor 7 is turned on, the driving gear 11 drives the transmission gear 5 to rotate automatically inside the shell 4. Therefore, the rotating shaft 6 drives the turning ring 8 to turn over the material inside the upper hopper 2, so as to prevent the material from accumulating inside the upper hopper 2, resulting in the inability of the feeding auger rotating rod 10 to transport the material to the inside of the extrusion chamber 1 evenly.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion device for a twin-screw extruder, comprising an extrusion chamber (1) and a motor (7), wherein an upper hopper (2) is arranged on the top of the extrusion chamber (1), characterized in that: The interior of the extrusion chamber (1) is rotatably connected to the surface of the rotating rod of the screw roller (14), the end of the rotating rod of the screw roller (14) is fixedly connected to the surface of the toothed disc (15), the teeth of the toothed disc (15) mesh with the teeth of the driving toothed disc (16), the surface of the driving toothed disc (16) is fixedly connected to the end of the power output shaft of the driving motor (13), and the base of the driving motor (13) is fixedly connected to the inner bottom surface of the extrusion chamber (1); The bottom end of the output pipe of the loading hopper (2) passes through the top surface of the feeding pipe cavity tube (9), the end of the feeding pipe cavity tube (9) passes through the surface of the loading pipe (12), the bottom end of the loading pipe (12) passes through the top surface of the extrusion chamber (1), the inside of the feeding pipe cavity tube (9) is rotatably connected to the surface of the feeding auger rotating rod (10), the end of the feeding auger rotating rod (10) is fixedly connected to the end of the power output shaft of the motor (7), the base of the motor (7) is fixedly connected to the side surface of the shell (4), and the base of the shell (4) is fixedly connected to the top surface of the extrusion chamber (1); The surface of the power output shaft of the motor (7) is fixedly connected to the inner ring surface of the driving gear (11), the teeth of the driving gear (11) mesh with the teeth of the transmission gear (5), the inner ring surface of the transmission gear (5) is fixedly connected to the surface of the rotating shaft (6), the surface of the rotating shaft (6) is rotationally connected to the inside of the housing (4), the surface of the rotating shaft (6) is rotationally connected to the inside of the cavity tube (19), the end of the cavity tube (19) passes through the surface of the upper hopper (2), and the end of the cavity tube (19) is fixedly connected to the surface of the turning ring (8).

2. An extrusion device for a twin-screw extruder according to claim 1, characterized in that: The outer surface of the upper hopper (2) is provided with a card slot (17), the surface of the card slot (17) is plugged with a card block (18), the surface of the card block (18) is fixedly connected to the inner surface of the cover (3), and the inner surface of the cover (3) is sleeved on the top of the upper hopper (2).

3. An extrusion device for a twin-screw extruder according to claim 1, characterized in that: The motor (7) and the drive motor (13) are both powered by an external power source.

4. An extrusion device for a twin-screw extruder according to claim 1, characterized in that: The number of screw rollers (14) is two, and the two screw rollers (14) are symmetrically arranged along the center point of the extrusion chamber (1).

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